Your main page states the payment method is via BTC (PayPal no longer available)Are there any other payment methods?0.1 BTC are around 270$ (true for Aug 3rd) + I don't own BTC and the commissions are crazy

I'm looking for the soft copy of your book, all of the volumes.Thanks.

Have you considered using an e-commerce vendor like FastSpring to take payments? I use them for my s/w, but they'll handle physical goods too. They take a cut of about ~9%, but they'll handle all the payment processing (incl' Paypal, visa/debit cards and cheque, but not Bt I don't think).